diff options
Diffstat (limited to 'stmhal/spi.c')
| -rw-r--r-- | stmhal/spi.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/stmhal/spi.c b/stmhal/spi.c index 8da4e3d87d..10ecf7ec8e 100644 --- a/stmhal/spi.c +++ b/stmhal/spi.c @@ -301,6 +301,14 @@ STATIC mp_obj_t pyb_spi_init_helper(const pyb_spi_obj_t *self, uint n_args, cons /// initialised (it has the settings from the last initialisation of /// the bus, if any). If extra arguments are given, the bus is initialised. /// See `init` for parameters of initialisation. +/// +/// The physical pins of the SPI busses are: +/// +/// - `SPI(1)` is on the X position: `(NSS, SCK, MISO, MOSI) = (X5, X6, X7, X8) = (PA4, PA5, PA6, PA7)` +/// - `SPI(2)` is on the Y position: `(NSS, SCK, MISO, MOSI) = (Y5, Y6, Y7, Y8) = (PB12, PB13, PB14, PB15)` +/// +/// At the moment, the NSS pin is not used by the SPI driver and is free +/// for other use. STATIC mp_obj_t pyb_spi_make_new(mp_obj_t type_in, uint n_args, uint n_kw, const mp_obj_t *args) { // check arguments mp_arg_check_num(n_args, n_kw, 1, MP_OBJ_FUN_ARGS_MAX, true); |